power float + floor harderner and power float only. what is the difference?
Ask me anything abt Construction Industry!, Q&A
Ask me anything abt Construction Industry!, Q&A
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Oct 18 2014, 11:21 PM
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#1
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934 posts Joined: Mar 2009 |
power float + floor harderner and power float only. what is the difference?
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Oct 19 2014, 11:30 AM
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#2
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QUOTE(iwubpreve @ Oct 19 2014, 01:43 AM) powerfloat mean direct finish on concrete. power float is a machine look like helicopter but upside down 1. after u cast concrete, then u will use this "helicopter" to spin on the floor make it smooth. hence no need do additional floor screed after concrete cured. then in what condition to choose between power float finish and cement render finish?power float + floor hardener mean u spread the floor hardener powder on the floor slab when the floor slab concrete still not yet set (not yet dry and hard mean) and then power float it. it is like a coating to concrete floor. have strong mechanical properties. hardly crack. can stand heavy duty implication. in residential and commercial building, normally it is use on car park. power float machine aka "helicopter" ![]() |
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Oct 19 2014, 11:51 AM
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#3
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QUOTE(iwubpreve @ Oct 19 2014, 11:44 AM) factory, car park with bear finish usually use that. heavy duty. cement screed require when u have some finishing on top such as tile, timber floor, carpet and etc. cement screed same with render? i thought screed is just for leveling so that u can put other finishes on it. rendering is a bit thicker. i saw some area finish directly with power float but some finish with cement render only?? |
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Oct 20 2014, 09:03 PM
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#4
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1. what is lacing/lacer bar in beam?
2. what is the function of bonding ties? is it steel bar that stick out from column and stiffener? usually how many layers will need one bonding tie? |
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Oct 21 2014, 08:56 PM
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#5
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QUOTE(iwubpreve @ Oct 21 2014, 09:36 AM) 1. actually I no idea the exactly function of lacer bar in beam. usually it used to hold the "cage" prior concrete casting. ensure the beam "cage" is in correct shape and position prior concrete casting. i mean bonding ties in brickwall?? 2. bonding tie is also use to hold the rebar. in case when casting concrete it give way go to left or right. it need bonding tie till full length base on the spacing mentioned in the drawing. however if u mention those exposed starter bar that reserve for future then it's just few layers. u mean S1 in the picture below right? |
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Oct 23 2014, 08:49 PM
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Nov 16 2014, 08:48 PM
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#7
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how accurate is using poundage in estimating structural loading? do engineer use this method for structural design?
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Nov 16 2014, 10:38 PM
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#8
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QUOTE(iwubpreve @ Nov 16 2014, 10:25 PM) poundage is for temporary estimation / general checking only. engineer got their own structural design when come to this. (eg. the area of the steel and area of beam when come to section got certain ratio to comply therefore poundage is relate but is not 100% accurate) and also depend on the loading the poundage figure might deviated a lot. if i got no time for measurement, can use poundage? based on your experience, normally how much kg/m3 for floor beam for high rise building like condo? 200kg/m3? |
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Dec 9 2014, 10:26 PM
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#9
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anyone know what is the cost of concrete culvert, approximately 2400mm wide in diameter?
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Mar 8 2018, 04:54 PM
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I plan to separate grd flr and 1st flr in a double storey shoplot (with internal staircase in building) by covering one side of the staircase with brickwall up to 2nd flr slab, and then add 2 new entrance door so that grd and 1st flr have separate access as shown in picture below.
I am concerned whether can i get bomba approval as there is only 1 fire escape back door on grd flr. Anyone can advise? |
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Mar 9 2018, 09:28 AM
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#11
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QUOTE(2387581 @ Mar 8 2018, 06:24 PM) No problem. Most shoplots are like this also. With single staircase only. Make sure that the walls are fire-rated. Only you need to make sure the distance between the two front doors are space adequately according to by-laws. I see. Sometimes i noticed some shoplot come with a fire staircase at the back of 1st flr, thats why i am not very sure. Thanks |
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Mar 22 2018, 04:14 PM
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#12
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Hi, anyone know how much is the range of qs consultant fee? let's say contract sum around 150m.
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Mar 22 2018, 08:41 PM
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#13
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Mar 23 2018, 09:44 AM
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Apr 28 2018, 11:13 AM
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QUOTE(captain_asia @ Apr 28 2018, 11:05 AM) Hi guys, I am civil engineering undergrad but throughout my studies I was never into doing design.Is there any alternative career pathway for civil engineer other than working in a consultancy firm. I guess working as a site engineer will be quite tough for me to perform coz i am a female. Plus I have ardy experienced working at a site during my internship. To be frank, working under hot sun for a long period of time was a horrible experience for me. So both of the most common routes for civil engineers seem not interest me. hmm, i dont think so. but u can try applying for jobs in contractor firm as a qs, my previous company always take in female with civil background as qs.I feel so regretful for pursuing civil engineering. The reason I did that was because I was offered a scholarship to study that. I have an idea of switching to quantity surveying as I heard it involves more office work compared to site work. Will QS firm hire civil engineering graduates? I do not mind starting form zero again. I really need someone experienced in the construction industry guide me on this. |
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Apr 28 2018, 11:31 AM
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QUOTE(captain_asia @ Apr 28 2018, 11:17 AM) qs job is more or less the same whether u are in consultant, contractor or developer firm, the main difference is u play different roles in different firms. in contractor firm, during tender stage, u need to do measurement from the drawings then u need to get quotations from supplier or subcon to price the bq for tender submission. after award of tender, u will need to submit monthly progress claim based on site progress to the consultant, keep track of variation order on site, engage subcontractors and certify their progress claim. this is basically what u do in a contractor firm. |
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Dec 24 2018, 10:52 AM
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